Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory F Carolan, MD

Orthopaedic Surgery Physician in Bethlehem, PA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1124188909

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Registry record

Entity type Individual (Type 1)

Name Gregory F Carolan

Credential MD

Sex Male

Practice address 801 Ostrum St, Pphp2, Bethlehem, PA, 18015

Phone (484) 526-1735

Fax (484) 526-2429

Enumeration date Dec 11, 2006

Last updated in NPPES Jan 10, 2013

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License A99243 (CA) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD426240 (PA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
102191610	Medicaid	PA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Gregory Carolan practice?

The practice location on file with NPPES is in Bethlehem, PA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Gregory Carolan?

The National Provider Identifier (NPI) for Gregory Carolan is 1124188909, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-10.